Results 21 to 30 of about 230,941 (392)
To what extent does photoperiod affect cattle reproduction? Clinical perspectives of melatonin administration [PDF]
, 2020 The seasonality of reproduction in most mammals is dictated by photoperiod, temperature and nutrition. Melatonin, mainly synthesized in the pineal gland, is generally accepted as the active mediator of photoperiod responses including reproduction.
De Rensis, F. +3 more
core +1 more source
Timing of puberty by photoperiod [PDF]
Reproduction Nutrition Développement, 1988 Photoperiod cues play an important role in the timing of puberty in the female lamb. Removal and replacement of photoperiod cues by denervation of the pineal gland and timed melatonin infusions, respectively, indicate that the pathway for transmission of photoperiod information develops well before puberty.
L. Foster, D. +2 more
openaire +5 more sources
Aquaculture, Fish and Fisheries, Volume 2, Issue 6, Page 470-483, December 2022., 2022 In Yellowstone Lake, Wyoming, lake trout carcasses are used to suppress invasive lake trout embryos in an effort to conserve native Yellowstone cutthroat trout. Using a field experiment, we determined that carcass treatment had limited, non‐target effects on benthic invertebrates.
Michelle A. Briggs +6 more
wiley +1 more source
HortScience, 2021 Lighting strategies for morphological and physiological characteristics of horticultural crops often focus on the proper daily light integral (DLI); however, a suitable combination of photosynthetic photon flux density (PPFD) and photoperiod at the same ...
Zhengnan Yan +5 more
doaj +1 more source
Photoperiodism and Diapause in Insects [PDF]
Nature, 1949 DURING the past five years, work has been in progress at Rothamsted on rearing in the laboratory a number of plant-feeding insects. One of the aims has been to maintain supplies of insects in large numbers throughout the year. This has necessitated a study of the factors affecting diapause, the quiescent phase in which most plant-feeding insect species
Way, M. J., Hopkins, B., Smith, P. M.
openaire +3 more sources
RNAlater facilitates remote sampling of aquaculture Atlantic salmon liver for proteomic analysis
Aquaculture, Fish and Fisheries, Volume 2, Issue 6, Page 578-586, December 2022., 2022 Graphical Abstract Proteomes of similar sizes were obtained in samples preserved by snap‐freezing or RNAlater. Proteins involved in transcriptional and translational machinery were affected in RNAlater stored samples. Abundance of published markers for heat and oxidative stress was not affected by snap‐freezing or RNAlater.
Anca G. Rusu +6 more
wiley +1 more source
Fishes, 2023 This study was designed to explore the impact of the photoperiod on the gonadal development and somatic growth of Atlantic salmon raised in recirculating aquaculture systems (RASs), with specific focus on the role that microRNA (miR)-155 plays as a ...
Teng Guo +5 more
doaj +1 more source
Backpack electrofishing does not contribute to external signs of gas bubble trauma in sculpins
Aquaculture, Fish and Fisheries, Volume 2, Issue 6, Page 572-577, December 2022., 2022 Abstract We exposed prickly sculpin Cottus asper and reticulate sculpin Cottus perplexus to electroshock and sham treatments in a controlled laboratory setting to determine if backpack electrofishing contributed to or exacerbated external signs of gas bubble trauma (GBT) in fish exposed to elevated total dissolved gas (TDG) levels. Fish were exposed to
Kenneth F. Tiffan, Nicole J. Eller
wiley +1 more source
Prediction of Flowering Occurrence in Faba Bean (Vicia faba L.)
Notulae Botanicae Horti Agrobotanici Cluj-Napoca, 2011 This study is about quantifying response flowering rate to temperature and photoperiod. Results indicated that the response of faba bean flowering rate is described by beta-segmented ( Barekat , Saraziri , Eraghi ) and beta-quadratic functions ( Gavi ).
Hosein AJAM NOROUZI, Farshid VAZIN
doaj +1 more source
Mapping QTL associated with photoperiod sensitivity and assessing the importance of QTL×environment interaction for flowering time in maize. [PDF]
PLoS ONE, 2010 An understanding of the genetic determinism of photoperiod response of flowering is a prerequisite for the successful exchange of germplasm across different latitudes.
Cuiling Wang +6 more
doaj +1 more source